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Category : Chemistry

Chemistry Questions from elementary level up to Intermediate (+2) level.

Question
Gastric juice contains about 3.0g of HCl per litre. If a person produces about 2.5 litre of gastric juice per day, how many antacid tablets each containing 400 mg of Al(OH)3 are needed to neutralize all the HCl produced in ...
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Chemistry Nageshwar Rathore 1 month 1 Answer 49 views 0

Question
Experimentally it was found that a metal oxide has formula M0.98O. Metal M, is present as M2+ and M3+ in its oxide. find the fraction of the metal which exists as M3+.
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Chemistry Yogita Gupta 1 month 1 Answer 57 views 0

Question
A vessel contains 1.6 g of dioxygen at STP. The gas is now transferred to another vessel at the constant temperature, where pressure becomes half of original pressure. Calculate the volume of new vessel and number of molecules of dioxygen.
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Chemistry Aman Adarsh 2 months 1 Answer 59 views 1

Question
4 g of NaOH is dissolved in 36 g of H2O. Calculate the mole fraction of each component. Also determine the molarity of the solution if specific gravity of solution is 1 g/ml.
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Chemistry Aman Adarsh 2 months 1 Answer 65 views 0

Question
A percolation bulb of 200 ml filled with air is heated from 27 °C to t°C. The air thus expelled measured 170 ml at 7°C. The pressure was always 1 atm. Calculate the value of t.
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Chemistry Nageshwar Rathore 3 months 1 Answer 57 views 0

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